480  
FXUS65 KBYZ 140732  
AFDBYZ  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE BILLINGS MT  
132 AM MDT SUN JUN 14 2026  
   
KEY MESSAGES
 
 
 
- FROST POSSIBLE FOR FOOTHILL LOCATIONS THIS MORNING.  
 
- WARMING AND MOSTLY DRY CONDITIONS THROUGH TUESDAY.  
 
- POTENTIAL FOR BREEZY CONDITIONS AND POSSIBLE  
SHOWERS/THUNDERSTORMS MID WEEK.  
 
 

 
   
DISCUSSION
 
 
NEXT 7 DAYS (THROUGH SATURDAY)...  
 
THERE IS A MODERATE CHANCE FOR FROST THROUGH EARLY THIS MORNING  
FOR LOCATIONS ALONG THE FOOTHILLS AND THE HIGHER HILLS OVER  
SOUTHEAST MONTANA.  
 
CONDITIONS WILL TREND DRIER INTO TUESDAY, OUTSIDE OF OCCASIONAL  
PIECES OF ENERGY BRINGING ISOLATED SHOWER AND WEAK THUNDERSTORM  
ACTIVITY TO THE MOUNTAINS AND FAR EAST IN THE AFTERNOONS AND  
EVENINGS. MONDAY MAY SEE BREEZY CONDITIONS NEAR THE DAKOTA BORDER,  
WITH A 20-40% CHANCE FOR GUSTS UP TO 35 MPH. LATE TUESDAY INTO  
WEDNESDAY, A STRONGER WAVE IS EXPECTED TO IMPACT THE REGION,  
BRINGING A BETTER CHANCE (30-60%) FOR SHOWERS AND THUNDERSTORMS  
AS WELL AS BREEZY WINDS (GUSTS 30 TO 45 MPH) OVER THE FOOTHILLS  
TUESDAY AND OVER THE EAST WEDNESDAY.  
 
THROUGH THE END OF THE WORK WEEK, OCCASIONAL PIECES OF ENERGY  
WILL CONTINUE TO MOVE THROUGH THE FLOW, ALLOWING ISOLATED  
AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS TO CONTINUE.  
HEADING INTO THE WEEKEND, THERE ARE HINTS THAT UPPER TROUGHING  
MOVES ONTO THE WEST COAST, INDUCING SOUTHWEST FLOW OVER THE  
REGION, WITH A BETTER POTENTIAL FOR DAILY THUNDERSTORMS.  
 
HIGHS TODAY WILL BE IN THE 60S TO LOW 70S, INCREASING TO MOSTLY  
80S BY TUESDAY. INTO THE WEEKEND, TEMPERATURES LOOK TO DECREASE  
INTO THE 70S TO LOW 80S. ARCHER  
   
AVIATION
 
 
SIGNIFICANT PRECIPITATION FELL OVER THE PAST 24 HOURS ALONG AND  
SOUTH OF I-90. THESE AREAS WILL BE VULNERABLE TO FOG DEVELOPMENT  
THRU ABOUT 16Z THIS MORNING. CONFIDENCE NOT HIGH ENOUGH TO GO WITH  
TEMPO GROUPS JUST YET, BUT MAY BE NEEDED, ESPECIALLY AT KSHR. IF  
FOG DOES DEVELOP EXPECT LIFR OR LOW CONDITIONS AT TIMES THROUGH  
15-16Z THIS MORNING. OUTSIDE OF POTENTIAL FOG EXPECT VFR FLIGHT  
CONDITIONS THRU THE DAY. BT  

 
   
PRELIMINARY POINT TEMP/POPS
 
 
TDY MON TUE WED THU FRI SAT  
-------------------------------------------------------  
BIL 070 047/079 054/087 061/075 051/079 052/083 057/080  
0/U 00/B 00/N 11/N 10/U 00/U 12/T  
LVM 068 041/077 048/083 053/075 044/079 045/083 048/077  
0/U 00/B 00/N 01/N 10/U 00/U 14/T  
HDN 071 043/077 050/087 057/074 047/077 049/083 054/080  
0/U 00/B 00/N 23/T 10/U 00/U 12/T  
MLS 073 049/076 051/083 055/071 049/074 049/079 053/078  
0/B 01/N 00/B 44/T 11/U 00/U 12/W  
4BQ 069 045/074 050/083 057/071 048/073 049/080 054/078  
0/U 01/B 00/B 23/T 11/U 00/U 13/T  
BHK 070 045/073 045/077 050/068 043/070 044/076 047/075  
0/B 02/T 01/B 67/T 32/T 00/U 11/B  
SHR 065 038/072 046/082 052/071 043/074 045/081 049/077  
1/U 00/N 00/B 12/T 11/U 00/U 15/T  
 

 
   
BYZ WATCHES/WARNINGS/ADVISORIES
 
 
MT...NONE.  
WY...NONE.  
 

 
 

 
WEATHER.GOV/BILLINGS  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab MT Page
The Nexlab WY Page Main Text Page